Dispersive effects on a diffractive optical element

Seongmin Im, Gwiyeong Moon, Donghyun Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this study, we investigate dispersive effects of a wire-grid polarizer (WGP) in imaging polarimetry. Dispersion in periodic structures such as WGP may cause dispersive misregistration in images captured in the far-field imaging system. As a measure of performance, we defined off-axis non-uniformity (NToff) and extinction ratio (ERoff) to evaluate nonuniformity induced by off-axis imaging scene. Similarly, we considered metrics to evaluate dispersive effects as wavelength-dependent non-uniformity in extinction ratio (NERλ) and transmittance (NTλ). Significant non-uniformity in the performance of a WGP was measured: The highest non-uniformity was obtained as |NToff|max = 0.93211 at Λ = 400 nm and |NERoff|max = 0.93624 at Λ = 600 nm, while |NTλ|max = 0.84935 at Λ = 400 nm and |NERλ|max = 0.90139 at Λ = 300 nm. We also present images in imaging polarimetry that suffers from dispersive effects

Original languageEnglish
Title of host publicationPhysics and Simulation of Optoelectronic Devices XXIX
EditorsBernd Witzigmann, Marek Osinski, Yasuhiko Arakawa
PublisherSPIE
ISBN (Electronic)9781510641952
DOIs
Publication statusPublished - 2021
EventPhysics and Simulation of Optoelectronic Devices XXIX 2021 - Virtual, Online, United States
Duration: 2021 Mar 62021 Mar 11

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume11680
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferencePhysics and Simulation of Optoelectronic Devices XXIX 2021
Country/TerritoryUnited States
CityVirtual, Online
Period21/3/621/3/11

Bibliographical note

Funding Information:
This work was supported by National Research Foundation grants funded by the Korean government (2019R1A4A1025958 and 2019K2A9A2A08000198) and partly sponsored by the Ministry of Trade, Industry and Energy (P048000064). Authors also acknowledge the support from the Korea Medical Device Development Fund (Project Number: 202012B12 and 202011D25).

Publisher Copyright:
© 2021 SPIE.

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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